{"id":16,"date":"2006-11-18T19:18:24","date_gmt":"2006-11-18T17:18:24","guid":{"rendered":"http:\/\/gcolpart.evolix.net\/blog21\/sirf-protocol-specification\/"},"modified":"2006-11-19T00:30:16","modified_gmt":"2006-11-18T22:30:16","slug":"sirf-protocol-specification","status":"publish","type":"post","link":"https:\/\/gcolpart.evolix.net\/blog21\/sirf-protocol-specification\/","title":{"rendered":"SiRF protocol specification"},"content":{"rendered":"<p>SiRF protocol is designed by <a href=\"http:\/\/www.sirf.com\">SiRF<\/a> for GPS material.<br \/>\nI don&#8217;t find a really clear specification, then I write it !<\/p>\n<p>Format of SiRF packet :<\/p>\n<p>****************************************************<br \/>\n* begin ** length ** payload ** checksum ** end *<br \/>\n****************************************************<\/p>\n<p>begin (2 bytes) = 0xa0a2<br \/>\nlength (2 bytes) = number of bytes in payload<br \/>\nchecksum (2 bytes) = XOR of bytes in payload AND 0x7fff<br \/>\nend (2 bytes) = 0xb0b3<\/p>\n<p>Example of SIRF message dump :<br \/>\n<em>a0a2 0009 000000010203040506 0007 b0b3<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>SiRF protocol is designed by SiRF for GPS material. I don&#8217;t find a really clear specification, then I write it ! Format of SiRF packet : **************************************************** * begin ** length ** payload ** checksum ** end * **************************************************** begin (2 bytes) = 0xa0a2 length (2 bytes) = number of bytes in payload checksum (2 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-16","post","type-post","status-publish","format-standard","hentry","category-english"],"_links":{"self":[{"href":"https:\/\/gcolpart.evolix.net\/blog21\/wp-json\/wp\/v2\/posts\/16","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gcolpart.evolix.net\/blog21\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gcolpart.evolix.net\/blog21\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gcolpart.evolix.net\/blog21\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gcolpart.evolix.net\/blog21\/wp-json\/wp\/v2\/comments?post=16"}],"version-history":[{"count":0,"href":"https:\/\/gcolpart.evolix.net\/blog21\/wp-json\/wp\/v2\/posts\/16\/revisions"}],"wp:attachment":[{"href":"https:\/\/gcolpart.evolix.net\/blog21\/wp-json\/wp\/v2\/media?parent=16"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gcolpart.evolix.net\/blog21\/wp-json\/wp\/v2\/categories?post=16"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gcolpart.evolix.net\/blog21\/wp-json\/wp\/v2\/tags?post=16"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}